Ask HN: Node.js for full-stack or only front-end?

How many people pick a full-stack Node.JS web application vs using it only for front-end and Ruby / Django for back-end?

I've got a bunch of boiler plate code written in Ruby from years ago that still works well, but I'm highly debating whether or not to re-write it all in Node.JS / all the back-end code, or simply keep it and re-write the front end...

The problem is that a bunch of gems I use(d) became deprecated / unmaintained.

How many projects use Node.js for full stack vs having it as front-end and Ruby/Python as back-end?